Reply To: Consistent Input in Location Field

• David Crabill

• October 9, 2014 at 9:03 am

To answer my own question, I stumbled on the validate_value filter, which allows me to do this. In my case, I simply wanted the input from the location field to include a city and state in the “San Francisco, CA” format, so I accomplished it like this:

function google_map_acf_validate_value( $valid, $value, $field, $input ) {
	if ( ! $valid ) { // bail early if it's already invalid
		return $valid;
	}
	
	preg_match( '/([^,]+), ([A-Z]{2})\b/', $value['address'], $matches );
	if ( ! $matches ) { // City was not found
		$valid = 'Address must include city and state';
	}
	
	return $valid;
}
add_filter( 'acf/validate_value/type=google_map', 'google_map_acf_validate_value', 10, 4 );